CN201039025Y - Current commutating and voltage reduction current limit device - Google Patents
Current commutating and voltage reduction current limit device Download PDFInfo
- Publication number
- CN201039025Y CN201039025Y CNU2007201432084U CN200720143208U CN201039025Y CN 201039025 Y CN201039025 Y CN 201039025Y CN U2007201432084 U CNU2007201432084 U CN U2007201432084U CN 200720143208 U CN200720143208 U CN 200720143208U CN 201039025 Y CN201039025 Y CN 201039025Y
- Authority
- CN
- China
- Prior art keywords
- down current
- limiting apparatus
- circuit
- rectification
- limiting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000004033 plastic Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/06—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
- H02M7/062—Avoiding or suppressing excessive transient voltages or currents
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Rectifiers (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a rectifier voltage reducing current limiting device which comprises an input terminal (102) connected with a rectifier circuit, a rectifier circuit (104) which is connected between the input terminal and the voltage reducing current limiting circuit, the voltage reducing current limiting circuit (106) which is connected between the rectifier circuit and the output terminal, and an output terminal (108) connected with a rectifier voltage reducing current limiting circuit. The utility model can both reach the required effects and reduce the cost. Furthermore, the utility model has the advantages of high safety and compact structure.
Description
Technical field
The utility model relates to circuit field, relates more specifically to a kind of rectification step-down current-limiting apparatus.
Background technology
In the prior art, the conversion of AC-to DC is that bridge heap by rectification carries out halfwave rectifier, carries out filtering or carry out rectification by unidirectional silicon complex circuit and realize by shunt capacitance.Restriction to load current is to realize by the series resistors inside at product.Wherein, these series resistances are dispersed on the pin of load or concentrate in together and are injection molded into plastic parts.
And in the prior art, rectification and current limliting separately two parts are carried out.For example, exist in the circuit of LED product under many groups situation in parallel, all must there be the resistance that is used for current limliting in each group, and this has brought very big inconvenience to production operation.
As can be seen from the above description, the higher and operation inconvenience of the mode cost of existing rectification.In addition, the part of current limliting is integrated with load, so influenced the fail safe of using.And rectification and current limliting are separated two parts and are carried out, brought very big inconvenience to production operation like this and increased quality control difficulty, influenced the attractive in appearance of product.
Summary of the invention
In view of above one or more problems, the utility model provides a kind of rectification step-down current-limiting apparatus.This rectification step-down current-limiting apparatus comprises: input is connected with rectification circuit; Rectification circuit is connected between input and the step-down current-limiting circuit; The step-down current-limiting circuit is connected between rectification circuit and the output; And output, be connected with rectification step-down current-limiting circuit.
Wherein, rectification circuit comprises four rectifier diodes.The step-down current-limiting circuit is the parallel circuits of an above resistance.And the resistance number of parallel circuits depends on the resistance sizes of the load that described output connects.Rectification circuit and step-down current-limiting apparatus are connected in series.
Also comprise the tail plug according to rectification step-down current-limiting apparatus of the present utility model, wherein, the type of the out-put supply of this tail plug depends on the installation site of tail plug on rectification step-down current-limiting apparatus.
Can be fixed on the circuit board according to rectification step-down current-limiting apparatus of the present utility model, also can be fixed on the insulating support.External form according to rectification step-down current-limiting apparatus of the present utility model can be molded by plastic rubber material, also can be sealed by plastic shell.
By the utility model, both can reach required effect, can reduce cost again.And, safe, the compact conformation of the utility model.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.In the accompanying drawings:
Fig. 1 is the circuit diagram according to the rectification step-down current-limiting apparatus of the utility model embodiment.
Embodiment
Below with reference to accompanying drawing, describe embodiment of the present utility model in detail.
As shown in Figure 1, the rectification step-down current-limiting apparatus according to the utility model embodiment comprises: input 102 is connected with rectification circuit; Rectification circuit 104 is connected between input and the step-down current-limiting circuit; Step-down current-limiting circuit 106 is connected between rectification circuit and the output; And output 108, be connected with rectification step-down current-limiting circuit.
Wherein, according to the rectification step-down current-limiting apparatus of the utility model embodiment lead by preceding plug (promptly, input) is connected with AC power supplies, by four rectifier diodes (promptly, rectification circuit) comes input current is carried out rectification, and come the DC power supply after the rectification is carried out step-down and current limliting by the resistor group (that is step-down current-limiting circuit) of connecting with four rectifier diodes, the load of thinking access (for example, LED) provides required stabilized power supply.Wherein, and the load that can insert according to output (for example, resistance sizes LED) is adjusted the number of resistor group, thus the normal steady operation of Control current, proof load.
In addition, can be provided with the tail plug on the rectification step-down current-limiting apparatus according to the utility model embodiment, with output voltage and electric current.Wherein, the access point difference of tail plug, the power supply type of output (AC power or DC power supply) is also different.
In addition, can fix in the circuit board according to the electronic component in the rectification step-down current-limiting apparatus of the utility model embodiment or on the insulating support.The plastic rubber material injection mo(u)lding can be used in outside according to the rectification step-down current-limiting apparatus of the utility model embodiment, also can use the plastic shell sealing cover, to improve security of products and reliability.
Owing to possess the function of rectification, step-down, current limliting according to the rectification step-down current-limiting apparatus of the utility model embodiment, do not need other resistance to come current limliting so organize in each group in the load in parallel more, so reduced production cost, made things convenient for production operation.And when supply power voltage raises unusually, can also protect load according to the rectification step-down current-limiting apparatus of the utility model embodiment, thereby can ensure the useful life of load.
In sum, rectification, step-down, three kinds of functions of current limliting are melted for one according to the rectification step-down current-limiting apparatus of the utility model embodiment, and compact conformation, specious, cost is lower, easy to operate.
The above is embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the claim scope of the present utility model.
Claims (10)
1. a rectification step-down current-limiting apparatus is characterized in that, comprising:
Input (102) is connected with rectification circuit;
Described rectification circuit (104) is connected between described input and the step-down current-limiting circuit;
Described step-down current-limiting circuit (106) is connected between described rectification circuit and the output; And
Described output (108) is connected with described rectification step-down current-limiting circuit.
2. rectification step-down current-limiting apparatus according to claim 1 is characterized in that described rectification circuit comprises four rectifier diodes.
3. rectification step-down current-limiting apparatus according to claim 2 is characterized in that described step-down current-limiting circuit is the parallel circuits of an above resistance.
4. rectification step-down current-limiting apparatus according to claim 3 is characterized in that the resistance number of described parallel circuits depends on the resistance sizes of the load that described output connects.
5. rectification step-down current-limiting apparatus according to claim 4 is characterized in that, described rectification circuit and described step-down current-limiting apparatus are connected in series.
6. according to each described rectification step-down current-limiting apparatus in the claim 1 to 5, it is characterized in that, also comprise the tail plug, wherein, the type of the out-put supply of described tail plug depends on the installation site of described tail plug on described rectification step-down current-limiting apparatus.
7. according to each described rectification step-down current-limiting apparatus in the claim 1 to 5, it is characterized in that described rectification step-down current-limiting apparatus is fixed on the circuit board.
8. according to each described rectification step-down current-limiting apparatus in the claim 1 to 5, it is characterized in that described rectification step-down current-limiting apparatus is fixed on the insulating support.
9. according to each described rectification step-down current-limiting apparatus in the claim 1 to 5, it is characterized in that the external form of described rectification step-down current-limiting apparatus is molded by plastic rubber material.
10. according to each described rectification step-down current-limiting apparatus in the claim 1 to 5, it is characterized in that described rectification step-down current-limiting apparatus is sealed by plastic shell.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201432084U CN201039025Y (en) | 2007-04-06 | 2007-04-06 | Current commutating and voltage reduction current limit device |
| US12/098,186 US7696700B2 (en) | 2007-04-06 | 2008-04-04 | System for rectifying and limiting current and reducing voltage |
| PCT/IB2008/003411 WO2009027847A2 (en) | 2007-04-06 | 2008-04-07 | System for rectifying and limiting current and reducing voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201432084U CN201039025Y (en) | 2007-04-06 | 2007-04-06 | Current commutating and voltage reduction current limit device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201039025Y true CN201039025Y (en) | 2008-03-19 |
Family
ID=39211551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201432084U Expired - Lifetime CN201039025Y (en) | 2007-04-06 | 2007-04-06 | Current commutating and voltage reduction current limit device |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7696700B2 (en) |
| CN (1) | CN201039025Y (en) |
| WO (1) | WO2009027847A2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009027847A2 (en) * | 2007-04-06 | 2009-03-05 | Cindex Holdings Limited (A Hong Kong Corporation) | System for rectifying and limiting current and reducing voltage |
| US7819575B2 (en) | 2007-08-14 | 2010-10-26 | Cindex Holdings Limited | Twinkle light bulb apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100176735A1 (en) * | 2009-01-15 | 2010-07-15 | Chen-Sheng Yang | LED light string assembly with constant current circuit |
| KR101007902B1 (en) * | 2009-03-25 | 2011-01-14 | 서울반도체 주식회사 | Driving circuit for light emitting diode |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2045557U (en) | 1988-08-17 | 1989-10-04 | 中国电子进出口总公司深圳工贸公司工程开发部 | Auto-off switch device for light lamp |
| US5069211A (en) * | 1989-08-25 | 1991-12-03 | Staodyn, Inc. | Microprocessor controlled electronic stimulating device having biphasic pulse output |
| JPH07110720A (en) | 1993-10-14 | 1995-04-25 | Matsushita Electric Ind Co Ltd | Drop type power source |
| US5731595A (en) * | 1996-09-30 | 1998-03-24 | Siemens Energy & Automation, Inc. | Diagnostic input for programmable logic controller |
| CN2368209Y (en) | 1999-02-01 | 2000-03-08 | 罗忠益 | Emergency power supply for fluorescent lamp |
| US7067992B2 (en) * | 2002-11-19 | 2006-06-27 | Denovo Lighting, Llc | Power controls for tube mounted LEDs with ballast |
| CN2620959Y (en) | 2003-03-07 | 2004-06-16 | 赵文兴 | New lamp body control and protective return for luminous diode |
| TWI236165B (en) * | 2004-07-30 | 2005-07-11 | Au Optronics Corp | Driving device for light emitted diode string |
| CN201039025Y (en) | 2007-04-06 | 2008-03-19 | 嘉智集团有限公司 | Current commutating and voltage reduction current limit device |
| CN201199738Y (en) | 2008-04-09 | 2009-02-25 | 嘉智集团有限公司 | LED lamp string circuit |
-
2007
- 2007-04-06 CN CNU2007201432084U patent/CN201039025Y/en not_active Expired - Lifetime
-
2008
- 2008-04-04 US US12/098,186 patent/US7696700B2/en not_active Expired - Fee Related
- 2008-04-07 WO PCT/IB2008/003411 patent/WO2009027847A2/en active Application Filing
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009027847A2 (en) * | 2007-04-06 | 2009-03-05 | Cindex Holdings Limited (A Hong Kong Corporation) | System for rectifying and limiting current and reducing voltage |
| WO2009027847A3 (en) * | 2007-04-06 | 2009-06-18 | Cindex Holdings Ltd A Hong Kon | System for rectifying and limiting current and reducing voltage |
| US7696700B2 (en) | 2007-04-06 | 2010-04-13 | Cindex Holdings Limited | System for rectifying and limiting current and reducing voltage |
| US7819575B2 (en) | 2007-08-14 | 2010-10-26 | Cindex Holdings Limited | Twinkle light bulb apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| US20080247207A1 (en) | 2008-10-09 |
| WO2009027847A3 (en) | 2009-06-18 |
| US7696700B2 (en) | 2010-04-13 |
| WO2009027847A2 (en) | 2009-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106329689B (en) | Adapter and method for realizing charging thereof | |
| CN201039025Y (en) | Current commutating and voltage reduction current limit device | |
| CN208689109U (en) | Multifunctional brake resistance detecting circuit and its frequency converter | |
| CN106712467A (en) | Energy-saving switch power supply with self-locking function | |
| CN204794683U (en) | Power supply chip output voltage's dynamic adjustment circuit | |
| CN107104594A (en) | Switching regulaor | |
| CN208890646U (en) | Series circuit, circuit board and calculating equipment | |
| CN207965722U (en) | The control circuit of PFC busbar voltages | |
| CN203054062U (en) | AC voltage signal detection circuit | |
| CN206135859U (en) | Pulse width modulation circuit based on TL494 chip | |
| CN108233692A (en) | A kind of soft starting circuit of switching regulator | |
| CN205142032U (en) | Input/output current-limiting voltage-stabilizing power supply | |
| CN204697328U (en) | Booster type LED drive circuit | |
| CN203102061U (en) | Voltage stabilizer with auto-transformer | |
| CN207732622U (en) | Output voltage constant-voltage control circuit | |
| CN106300269A (en) | A kind of type voltage regulation overcurrent power-off indicating circuit | |
| CN206879112U (en) | A kind of heat driven control chip | |
| CN206389294U (en) | A kind of power supply circuit and control system | |
| CN207542997U (en) | Share the constant current constant voltage control module and reduction voltage circuit of compensation | |
| CN201199671Y (en) | Power supply output circuit | |
| CN206099754U (en) | Wide input voltage range's auxiliary source circuit | |
| CN205986622U (en) | DC of parallelly connected variable components and parts DC converting circuit | |
| CN206533306U (en) | PWM circuit and DC brushless motor controller | |
| CN205724981U (en) | A kind of charging circuit, pcb board and charger | |
| CN213879638U (en) | Novel circuit for dynamically adjusting core voltage |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080319 |